Table 2.

Reactivity against full antigen and Ro52 fragments in various autoimmune diseases.

	SSc n = 43 (%)	SjS/SLE (n = 48) (%)	DM (n = 15) (%)	PBC (n = 15) (%)	p (SSc vs. SjS/SLE)	p (SSc vs. DM)	p (SSc vs. PBC)	p (SjS/SLE vs. DM)	p (SjS/SLE vs. PBC)	p (DM vs. PBC)
Full antigen	100	100	100	100	NS	NS	NS	NS	NS	NS
Ro52-1	11.6	41.7	20	6.7	0.001	NS	NS	NS	0.01	NS
Ro52-2	100	100	100	100	NS	NS	NS	NS	NS	NS
Ro52-3	0	0	0	0	NS	NS	NS	NS	NS	NS
Ro52-4	27.9	50.0	33.3	6.7	0.03	NS	NS	NS	0.002	NS
Ro52-5	41.9	58.3	40	40.0	NS	NS	NS	NS	NS	NS

SSc, systemic sclerosis; SjS, Sjögrens syndrome; SLE, systemic lupus erythematosus; PBC, primary biliary cholangitis. Significant p-values are indicated in bold.